Transmission structure, actuator, vehicle door and vehicle

Abstract

The utility model discloses a transmission structure, an actuator, a vehicle door and a vehicle, and relates to the technical field of automobile parts, the transmission structure comprises a plurality of planet wheels, and the planet wheels are provided with first positioning holes penetrating through the two ends; the fixed gear comprises an open cavity, first inner teeth are arranged on the inner wall of the open cavity, and second positioning holes arranged in a circumferential array are formed in the bottom of the open cavity; in the process that the sun gear and the planet gear rotate around the sun gear, the center axis of the first positioning hole can move to be collinear with the center axis of the second positioning hole; and the movable gear is provided with third positioning holes arranged in a circumferential array, and the center axis of the first positioning hole can move to be collinear with the center axis of the third positioning hole. When the transmission structure is assembled, the planet gear can be quickly positioned in the movable output gear and the fixed gear through the positioning holes, tooth alignment operation is not needed, the positioning speed of the planet gear is increased, and the assembly efficiency of the transmission structure is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a transmission structure, an actuator, a vehicle door and a vehicle. BACKGROUND

[0002] The actuator is an output component when the door handle is extended. When assembled and used, the hidden door handle can be slowly extended from the vehicle body, so that the vehicle body is more simple and has more sense of technology. At present, the actuator using planetary gear reduction is assembled with blind teeth, which is easy to be misaligned, so that each actuator needs to be assembled twice or more times, which greatly reduces the assembly efficiency of the actuator. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve one of the above technical problems in the prior art. To this end, the present application provides a transmission structure.

[0004] The present application also provides an actuator.

[0005] The present application also provides a vehicle door.

[0006] The present application also provides a vehicle.

[0007] According to the embodiment of the first aspect of the present application, a transmission structure is provided, comprising a plurality of planetary gears, the planetary gears are provided with first positioning holes penetrating through both ends;

[0008] A fixed gear, the fixed gear comprises an open cavity, the inner wall of the open cavity is provided with a first internal tooth, the bottom of the open cavity is provided with a second positioning hole arranged in a circumferential array, the number of the second positioning holes is the same as the number of the planetary gears, and the planetary gears can be engaged with the first internal tooth;

[0009] A sun gear, the planetary gears and the sun gear are arranged in the open cavity, the sun gear can be engaged with the planetary gears, the planetary gears are arranged in a circumferential array with the sun gear as the center, and the center axis of the first positioning hole can move to be collinear with the center axis of the second positioning hole during rotation of the planetary gears around the sun gear;

[0010] A movable gear, the second internal tooth of the movable gear can be engaged with the planetary gears, the movable gear is provided with a third positioning hole arranged in a circumferential array, the number of the third positioning holes is the same as the number of the planetary gears, and the center axis of the first positioning hole can move to be collinear with the center axis of the third positioning hole.

[0011] The transmission structure has at least the following beneficial effects: the transmission structure for speed reduction is improved, the first positioning hole is additionally arranged on the planetary gear, the second positioning hole is additionally arranged on the fixed gear, and the third positioning hole is additionally arranged on the movable gear, and the transmission structure can be quickly assembled by cooperating with the positioning tool. When the transmission structure is assembled, the external tool for positioning is sequentially arranged through the third positioning hole of the movable gear, the first positioning hole of the planetary gear and the second positioning hole of the fixed gear, so that the planetary gear can be quickly positioned in the interior of the movable gear and the fixed gear, without the need of tooth alignment operation, the positioning speed of the planetary gear is improved, and the assembly efficiency of the transmission structure is effectively improved.

[0012] According to the transmission structure of the first aspect of the present application, the first positioning hole, the second positioning hole and the third positioning hole are polygonal in cross-sectional shape.

[0013] According to the transmission structure of the first aspect of the present application, the polygon is rectangular.

[0014] According to the transmission structure of the first aspect of the present application, the planetary gear comprises a first outer tooth and a second outer tooth, which are arranged on the outer periphery of the planetary gear along the axial direction of the planetary gear, the first outer tooth can be engaged with the first inner tooth, and the second outer tooth can be engaged with the second inner tooth.

[0015] According to the second aspect of the present application, an actuator is provided, comprising: a housing provided with a storage cavity;

[0016] The transmission structure is arranged in the storage cavity;

[0017] An execution structure is arranged in the storage cavity and is in transmission connection with the transmission structure, and the execution structure comprises a first execution member capable of linear motion;

[0018] A driving member, a driving rod of the driving member is fixedly connected with the sun gear in the open cavity, and the driving member is used to drive the sun gear to rotate.

[0019] According to the second aspect of the present application, the execution structure further comprises a second execution member, the second execution member is in threaded connection with the first execution member, so as to convert the rotation of the second execution member into the linear motion of the first execution member, and the second execution member is in meshing connection with the movable gear.

[0020] According to the second aspect of the present application, the first execution member is provided with a guide portion, and the storage cavity is provided with a guide groove matched with the guide portion.

[0021] According to the actuator of the embodiment of the third aspect of the present application, the vehicle door is provided.

[0022] According to the actuator of the embodiment of the third aspect of the present application, the vehicle door is provided.

[0023] According to the actuator of the embodiment of the third aspect of the present application, the vehicle door is provided.

[0024] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 is a structural schematic diagram of the actuator of the embodiment of the present application;

[0027] Figure 2 is an exploded schematic diagram of the actuator in the embodiment of the present application;

[0028] Figure 3 is an exploded schematic diagram of the transmission structure and the execution structure in the embodiment of the present application;

[0029] Figure 4 is an exploded schematic diagram of the transmission structure in the embodiment of the present application Figure 1 ;

[0030] Figure 5 is an exploded schematic diagram of the transmission structure in the embodiment of the present application Figure 2 ;

[0031] Figure 6 is a structural schematic diagram of the housing in the embodiment of the present application.

[0032] Reference signs: first housing 101, second housing 102, external socket 103, sealing groove 104, sealing ring 105, first sealing part 1051, second sealing part 1052, driving member 200, sun gear 210, transmission structure 300, fixed gear 310, first inner tooth 311, positioning groove hole 312, second positioning hole 313, limiting part 314, planetary gear 320, first outer tooth 321, second outer tooth 322, first positioning hole 323, movable gear 330, third outer tooth 331, second inner tooth 332, third positioning hole 333, execution structure 400, second execution member 410, fourth outer tooth 411, first execution member 420, guide part 421, fixed member 510, positioning member 520. DETAILED DESCRIPTION

[0033] The detailed description of the application will be described in detail in this part, the preferred embodiments of the application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the application, but it cannot be understood as a limitation on the protection scope of the application.

[0034] In the description of the application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the application.

[0035] In the description of the application, several meanings are one or more, and the meaning of multiple is more than two, greater than, less than, more than and the like are not included in the number, and above, below, within and the like are included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0036] In the description of the application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the application in combination with the specific content of the technical scheme.

[0037] Reference Figures 1 to 3 The embodiment of the application provides an actuator, which comprises a shell, a transmission structure 300, an execution structure 400 and a driving piece 200.

[0038] Among them, the shell is provided with a storage cavity, the transmission structure 300, the execution structure 400 and the driving piece 200 are all arranged in the storage cavity.

[0039] Among them, as shown in Figure 4 and Figure 5 The transmission structure 300 of the application comprises a plurality of planetary gears 320, a fixed gear 310, a sun gear 210 and a movable gear 330, that is, the transmission structure 300 is a planetary gear structure.

[0040] The planetary gear 320 is provided with a first positioning hole 323 penetrating through both ends.

[0041] The fixed gear 310 comprises an open cavity, the inner wall of the open cavity is provided with a first internal gear 311, the bottom of the open cavity is provided with a second positioning hole 313, the number of the second positioning hole 313 is consistent with the number of the planetary gear 320, the second positioning hole 313 is arranged in a circular array with the center axis of the fixed gear 310 as the center, the planetary gear 320 is arranged in the open cavity, and the planetary gear 320 can be engaged with the first internal gear 311.

[0042] The planetary gear 320 and the sun gear 210 are arranged in the open cavity, the sun gear 210 can be engaged with the planetary gear 320, the planetary gear 320 is arranged in a circular array with the sun gear 210 as the center, and the center axis of the first positioning hole 323 can be moved to be collinear with the center axis of the second positioning hole 313 during rotation of the planetary gear 320 around the sun gear 210.

[0043] The second internal gear 332 of the movable gear 330 can be engaged with the planetary gear 320, the movable gear 330 is provided with a third positioning hole 333 arranged in a circular array, the number of the third positioning hole 333 is the same as the number of the planetary gear 320, and the center axis of the first positioning hole 323 can be moved to be collinear with the center axis of the third positioning hole 333.

[0044] When the sun gear 210 is driven to rotate by an external drive, the sun gear 210 drives the planetary gear 320 to rotate, the planetary gear 320 rotates and revolves around the sun gear 210, the fixed gear 310 is fixed, the movable gear is movable, and the movable gear 330 is driven to rotate in the process of rotation and revolution of the planetary gear 320.

[0045] The application improves the design of the transmission structure 300 for speed reduction, by adding the first positioning hole 323 on the planetary gear 320, adding the second positioning hole 313 on the fixed gear 310, and adding the third positioning hole 333 on the movable gear 330, the transmission structure 300 can be quickly assembled by cooperating with a positioning tool.

[0046] As shown in the figure, Figure 4 The positioning tool comprises a fixed part 510 and a positioning part 520, the number of the positioning part 520 is the same as the number of the planetary gear 320, the positioning part 520 is arranged in a circular array on the fixed part 510, the arrangement of the positioning part 520 corresponds to the arrangement of the third positioning hole 333, that is, each positioning part 520 can correspond to each third positioning hole 333, the fixed part 510 is used for fixed array arrangement of the positioning part 520, and the positioning part 520 can be matched with the first positioning hole 323, the second positioning hole 313 and the third positioning hole 333.

[0047] When assembling the transmission structure 300, the positioning member 520 for positioning is passed through the third positioning hole 333 of the movable gear 330, and then several planetary gears 320 are respectively sleeved on different positioning members 520, so that the planetary gears 320 are quickly positioned on the movable gear 330, and the planetary gears 320 can be quickly engaged with the second internal tooth 332. After the planetary gears 320 are assembled, the second positioning hole 313 of the fixed gear 310 is passed through the positioning member 520, so that the planetary gears 320 can be quickly positioned in the open cavity of the fixed gear 310. Finally, the sun gear 210 is fixed with the external drive and enters the open cavity to engage with the planetary gears 320, and the quick assembly of the transmission structure 300 is completed.

[0048] The cooperation of the positioning tool and the positioning hole enables the planetary gears 320 to be quickly positioned in the interiors of the movable gear and the fixed gear 310, without the need for one-by-one tooth engagement operation, thereby improving the positioning speed of the planetary gears 320 and effectively improving the assembly efficiency of the transmission structure 300.

[0049] In some specific embodiments, four planetary gears 320 are provided, and the number of the second positioning holes 313 and the third positioning holes 333 is also four.

[0050] The cross-sectional shape of the first positioning hole 323, the second positioning hole 313 and the third positioning hole 333 is polygonal. After the positioning member 520 cooperates with the positioning hole, the planetary gears 320 can be prevented from rotating, the planetary gears 320 and the first internal tooth 311 or the second internal tooth 332 can be quickly engaged, the blind tooth engagement operation is not needed, and the assembly difficulty is reduced.

[0051] In some specific embodiments, the polygon is a rectangle. Of course, in some other embodiments, the polygon can also be a triangle, a pentagon or a hexagon, which will not be illustrated one by one here.

[0052] In some embodiments, the planetary gear 320 includes the first external tooth 321 and the second external tooth 322, and the first external tooth 321 and the second external tooth 322 are arranged on the outer periphery of the planetary gear 320 along the axial direction of the planetary gear 320. The first external tooth 321 can be engaged with the first internal tooth 311, and the second external tooth 322 can be engaged with the second internal tooth 332.

[0053] The engagement of the first external tooth 321 and the first internal tooth 311 enables the planetary gear 320 to revolve while rotating, and it should be noted that the diameter of the first internal tooth 311 is greater than the diameter of the second internal tooth 332.

[0054] The transmission structure 300 described above can convert the input high-speed rotation into low-speed rotation of the movable gear 330, while improving the transmission torque.

[0055] Further, the execution structure 400 is arranged in the storage cavity and is in transmission connection with the transmission structure 300, the execution structure 400 comprises a first execution member 420 capable of performing linear motion, and the execution structure 400 can convert the rotation of the movable gear 330 into the linear motion of the first execution member 420.

[0056] The driving rod of the driving member 200 is fixedly connected with the sun gear 210 in the open cavity, and the driving member 200 is used for driving the sun gear 210 to rotate.

[0057] When the execution device is used for driving the door handle of the automobile door, the high-speed rotation of the driving member 200 is input into the transmission structure 300, the speed is reduced through the planetary gear structure, and the linear motion of the first execution member 420 is converted through the execution structure 400, so that the handle of the automobile door can be driven to pop out.

[0058] In the embodiment of the application, the driving member 200 is a motor.

[0059] In some embodiments, as shown in FIG. 3, the execution structure 400 further comprises a second execution member 410, the second execution member 410 is in threaded connection with the first execution member 420, so as to convert the rotation of the second execution member 410 into the linear motion of the first execution member 420, wherein the second execution member 410 is in meshing connection with the movable gear 330, so as to be driven to rotate by the movable gear 330. Figure 2

[0060] In the embodiment of the application, the movable gear 330 is provided with a third external gear 331, and the second execution member 410 is provided with a fourth external gear 411 matched with the third external gear 331.

[0061] Further, the first execution member 420 is a rod member, a part of the outer surface of the rod member is provided with external threads, and the second execution member 410 has internal threads matched with the external threads, so that the first execution member 420 can perform linear motion when the second execution member 410 rotates.

[0062] In some embodiments, the first execution member 420 is provided with a guide portion 421, and a guide groove matched with the guide portion 421 is arranged in the storage cavity, and the rotation of the first execution member 420 is limited through the cooperation of the guide portion 421 and the guide groove.

[0063] In some embodiments, the fixed gear 310 is provided with a limiting portion 314, and the limiting portion 314 can prevent the fixed gear 310 fixed in the storage cavity from rotating.

[0064] ​In some embodiments, the bottom of the fixed gear 310 is provided with a positioning slot hole 312 through which the sun gear 210 passes, and the positioning slot hole 312 enables the sun gear 210 to quickly mesh with the planet gear 320, without the need to assemble the teeth one by one, greatly improving the efficiency of correct assembly.

[0065] In the embodiments of the present application, the actuator further comprises an external socket 103, which is used to be connected with a power supply socket to supply power to the driving member 200.

[0066] In some embodiments, as shown in Figure 6 The housing comprises a first shell 101 and a second shell 102, and the first shell 101 and the second shell 102 are sealingly connected.

[0067] Specifically, the first shell 101 and the second shell 102 are provided with sealing grooves 104 on the side facing each other, and sealing rings 105 are arranged in the sealing grooves 104. When the first shell 101 and the second shell 102 are closed, a storage cavity is formed, and the cooperation of the sealing ring 105 and the sealing groove 104 enables the housing to achieve waterproof sealing.

[0068] In some embodiments, the sealing ring 105 further forms a first sealing portion 1051 for sealing the first actuating member 420 and a second sealing portion 1052 for the external socket, and the cooperation of the first sealing portion 1051 and the first sealing portion 1051 ensures the waterproof sealing effect of the housing.

[0069] The embodiments of the present application also provide a vehicle door with the above-mentioned actuator.

[0070] The embodiments of the present application also provide an automobile with the above-mentioned vehicle door.

[0071] The embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A transmission arrangement, characterized by: The transmission structure comprises a plurality of planet gears provided with first positioning holes through both ends; a fixed gear comprising an open cavity, an inner wall of the open cavity being provided with first internal teeth, a bottom of the open cavity being provided with second positioning holes arranged in a circumferential array, the number of the second positioning holes being the same as that of the planet gears, the planet gears being capable of engaging with the first internal teeth; a sun gear, the planet gears and the sun gear being arranged in the open cavity, the sun gear being capable of engaging with the planet gears, the planet gears being arranged in a circumferential array with the sun gear as the center, a central axis of the first positioning hole being capable of moving to be collinear with a central axis of the second positioning hole during rotation of the planet gears around the sun gear; a movable gear, second internal teeth of the movable gear being capable of engaging with the planet gears, the movable gear being provided with third positioning holes arranged in a circumferential array, the number of the third positioning holes being the same as that of the planet gears, the central axis of the first positioning hole being capable of moving to be collinear with a central axis of the third positioning hole.

2. The transmission arrangement of claim 1, wherein: The first positioning hole, the second positioning hole and the third positioning hole are polygonal in cross-sectional shape.

3. The transmission arrangement of claim 2, wherein: The polygon is rectangular.

4. The transmission arrangement of claim 1, wherein: The planet gear comprises first external teeth and second external teeth, the first external teeth and the second external teeth being arranged on an outer periphery of the planet gear along an axial direction of the planet gear, the first external teeth being capable of engaging with the first internal teeth, the second external teeth being capable of engaging with the second internal teeth.

5. An actuator, characterized by: The transmission structure comprises a housing provided with a storage cavity; any one of the transmission structures in claims 1 to 4, arranged in the storage cavity; an execution structure arranged in the storage cavity and in transmission connection with the transmission structure, the execution structure comprising a first execution member capable of linear motion; a driving member, a driving rod of the driving member being fixedly connected with the sun gear in the open cavity, the driving member being used to drive the sun gear to rotate.

6. The actuator of claim 5, wherein: The execution structure further comprises a second execution member, the second execution member being threadedly connected with the first execution member so as to be capable of converting rotation of the second execution member into linear motion of the first execution member, wherein the second execution member is in engagement connection with the movable gear.

7. The actuator of claim 6, wherein: The first execution member is provided with a guide portion, and the storage cavity is provided with a guide groove matched with the guide portion.

8. The actuator of claim 5, wherein: The housing comprises a first housing and a second housing, the first housing and the second housing being sealingly connected.

9. A vehicle door characterized by: The execution device comprises any one of the execution devices in claims 5 to 8.

10. A vehicle characterized by: The vehicle door comprises the vehicle door in claim 9.

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